The Zenport Z203010 sunflower seed screen bird feeder attracts a variety of clinging and perching birds to your yard. Easy to fill feeder holds 6 to 7 pounds of black oiled, hulled or mixed sunflower seeds. When filled the feeder attracts birds such as Cardinals, Chickadees, Nuthatches, Titmice, Woodpeckers and more. Squirrel proof. Birds feed by using their beaks to peck into the mesh. The mesh makes it difficult for squirrels to pull food out with their paws.